The secret to this radical change is in the patented Nutanix Distributed File System. What you see here is a diagram representing a typical Nutanix cluster made up of nodes which are nothing but standard x86 servers with direct attached SSDs and HDDs.
Unlike traditional infrastructure with a finite number of storage controllers, each additional node added to the Nutanix cluster incorporates a storage controller VM ensuring no bottlenecks in the architecture as you scale out.
In doing so, you completely avoid forklift upgrades, irregularities in performance as new users are added, and reduce footprint significantly. Lastly, each Nutanix node has a built-in hypervisor of choice, whether it be vSphere, Hyper-V or KVM.
This ensures the deployment is well provisioned for future enhancements such as integration with public clouds.